Abstract：The boron ore deposits in Eastern Liaoning region are tectonically controlled by the Dashiqiao-FengchengKuandian paleo-doming structural zone in the northeast part of North China platform. The boron-bearing series, occurred in Lieryu formation, lower Liaohe group, Proterozoic, are distributed in a W-E- and NE-trending belt of 350 km long and 60 km wide. The ore bodies are developed in serpentinized megnisio-peridotite or serpentinized Mg-rich marble of Lieryu formation, with obvious stratabound and lithological controlled characters. The wall rocks are severely altered. The tourmalinization leads a high content of B element in the wall rocks. The ratio of Ca/Mg in the serpentinized megnisio-peridotite or serpentinized Mg-rich marble varies sharply, showing a close relationship between the rocks and mineralization. The thickness of the boron-bearing series is positively correlated to the development of ore bodies. Based on the characteristics of the boron ore bodies in Eastern Liaoning, four prospective areas are predicted.
2005, Vol. 14 
辽公网安备 21010502000112号